Measurement of Pi-K Ratios from the NuMI Target.

Seun, S. M.

Technical Information Center Oak Ridge Tennessee

关键词: Pions;    Kaons;    Carbon;    Particle production;    Cherenkov counters;   

RP-ID  :  DE2008935004

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Interactions of protons (p) with the NuMI (Neutrinos at the Main Injector) target are used to create the neutrino beam for the MINOS (Main Injector Neutrino Oscillation Search) Experiment. Using the MIPP (Main Injector Particle Production) experimental apparatus, the production of charged pions and kaons in p+NuMI interactions is studied. The data come from a sample of 2 x 10(sup 6) events obtained by MIPP using the 120 GeV/c proton beam from the Main Injector at Fermi National Accelerator Laboratory in Illinois, USA. Pions and kaons are identified by measurement in a Ring Imaging Cherenkov detector. Presented are measurements of (pi)(sup -)/(pi)(sup +), K(sup -)/K(sup +), (pi)(sup +)/K(sup +) and (pi)(sup -)/K(sup -) production ratios in the momentum range p(sub T) < 2 GeV/c transversely and 20 GeV/c < p(sub z) < 90 GeV/c longitudinally. Also provided are detailed comparisons of the MIPP NuMI data with the MIPP Thin Carbon data, the MIPP Monte Carlo simulation and the current MINOS models in the relevant momentum ranges.